Home / 28,160.12-42,236.94-7,385.24

Finding the Fourth Proportional to 28,160.12, 42,236.94 and 7,385.24

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Solution

The fourth proportional to 28,160.12, 42,236.94 and 7,385.24 is: 11,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.12 : 42,236.94 = 7,385.24 : x
  2. Step 2: Convert to fraction form
    28,160.12/42,236.94 = 7,385.24/x
  3. Step 3: Cross multiply
    28,160.12x = 42,236.94 × 7,385.24
  4. Step 4: Simplify right side
    28,160.12x = 311,929,938.77
  5. Step 5: Solve for x
    x = 311,929,938.77/28,160.12
  6. Step 6: Final answer
    x = 11,077.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.